Dormer Drill Bit HSS 31/64″

TiN-Tip Performance The Titanium Nitride coating reduces friction at the cutting edge, allowing for faster feed rates and preventing the “built-up edge” common when drilling softer or gummy materials.

Precision Self-Centering Equipped with a 118° split point geometry, this bit eliminates the need for a center punch. It bites into the material immediately, ensuring the hole remains perfectly on-center.

Advanced Chip Evacuation The specialized flute design is engineered to lift swarf and chips out of the hole rapidly, which is essential for a large diameter bit to avoid heat buildup and friction.

Heavy-Duty Construction Made from industrial-quality HSS, it is capable of drilling through a wide range of materials, including alloyed steel, carbon steel, and cast iron.

Steam Tempered Finish The blue-tempered finish on the flutes helps retain cutting lubricant, ensuring a smoother cut and further extending the life of the tool.

Specialized Fractional Size As a 31/64″ bit, it provides the precise 0.0156″ step-down from a standard 1/2″ bit, making it a critical tool for specific mechanical tolerances and industrial fitments.